Abstract: The present application provides a composition for treatment or prophylaxis of age-related macular degeneration in a subject, comprising molecular hydrogen as an active ingredient, and a method for treatment or prophylaxis of age-related macular degeneration, comprising administering the composition to a subject with age-related macular degeneration.

Abstract: This plasma processing apparatus is provided with a processing container, a placing table, a gas supply mechanism, a plasma generating mechanism, and an adjustment unit. The placing table is provided in the processing container, and a subject to be processed is placed on the placing table. The gas supply mechanism supplies a processing gas to the inside of the processing container, said processing gas being to be used for the purpose of plasma reaction. The plasma generating mechanism includes a microwave oscillator, and brings the processing gas supplied to the inside of the processing container into the plasma state using microwaves oscillated by means of the microwave oscillator. In the cases of performing a plurality of steps for plasma-processing the subject, the adjustment unit adjusts, at timing of switching the steps, the frequencies of the microwaves to be oscillated by means of the microwave oscillator to target frequencies predetermined for respective steps.

Abstract: An ultrasonic puncture needle according to the present invention comprises a sheath for being inserted into a treatment tool insertion channel of an ultrasonic endoscope, and a needle tube for being inserted into tissue within the body cavity through the sheath, which includes multiple staggered-array doughnut-shaped recesses over a predetermined range on the surface of the tip portion of the needle tube from the portion near the tip thereof.

Abstract: In a recommended item presentation server, client identifier associated client preference estimating factor information of a plurality of clients is obtained, and when a recommended item presentation request and a client preference estimating factor information of one client is received from an item provider server for providing items to a plurality of clients through a network, where the client preference estimating factor information indicates a preference of the one client, without identifying the one client, a recommended item list is produced according to the client identifier associated client preference estimating factor information and the client preference estimating factor information and transmitted to the item provider server.